package com.aaronhu.system.http;


import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.*;
import io.netty.util.CharsetUtil;
import java.net.URI;

import java.nio.charset.StandardCharsets;

public class TestHttpServerHandler extends SimpleChannelInboundHandler<HttpObject> {
    @Override
    protected void channelRead0(ChannelHandlerContext ctx, HttpObject msg) throws Exception {
        if(msg instanceof HttpRequest){
            System.out.println("pipeline hashcode: "+ctx.pipeline().hashCode());
            System.out.println("msg 类型="+msg.getClass());
            System.out.println("客户端地址："+ctx.channel().remoteAddress());

            HttpRequest httpRequest = (HttpRequest) msg;
            URI uri = new URI(httpRequest.uri());
            if("/favicon.ico".equals(uri.getPath())) {
                System.out.println("no reply of favicon.");
                return;
            }

            ByteBuf content = Unpooled.copiedBuffer("hello, 我是服务器".getBytes(StandardCharsets.UTF_8));

            DefaultFullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, content);
            response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain");
            response.headers().set(HttpHeaderNames.CONTENT_LENGTH, content.readableBytes());

            ctx.writeAndFlush(response);
        }
    }
}
